Overview
The INA196AIDBVT is a current shunt monitor produced by Texas Instruments, part of the INA193-INA198 family. This device is designed to sense voltage drops across shunts at common-mode voltages ranging from -16 V to +80 V, making it versatile for various high-voltage applications. It operates from a single power supply of 2.7 V to 18 V and is housed in a compact SOT-23 (DBV) package with 5 pins.
The INA196AIDBVT features a bandwidth of up to 500 kHz, which simplifies its use in current control loops. It is available with a gain of 20 V/V, making it suitable for precise current measurement and monitoring.
Key Specifications
| Parameter | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|
| Common-Mode Input Range | - | -16 | - | 80 | V |
| Operating Supply Voltage | - | 2.7 | - | 18 | V |
| Gain | - | - | 20 | - | V/V |
| Bandwidth | CLOAD = 5 pF | - | - | 500 | kHz |
| Offset Voltage, RTI | - | -0.5 | 2 | 3 | mV |
| Common-Mode Rejection Ratio (CMRR) | VIN+ = -16 V to 80 V | 80 | - | 94 | dB |
| Quiescent Current | VOUT = 2 V | 700 | - | 900 | μA |
| Operating Temperature Range | - | -40 | - | 125 | °C |
Key Features
- Wide Common-Mode Voltage Range: The INA196AIDBVT can operate at common-mode voltages from -16 V to +80 V, making it suitable for high-voltage applications.
- Low Error: The device has a total output error of ±0.75% at 25°C and ±2.2% over the extended temperature range, ensuring high accuracy.
- High Bandwidth: With a bandwidth of up to 500 kHz, it is ideal for use in current control loops and high-frequency applications.
- Compact Packaging: The SOT-23 (DBV) package is space-saving, making it suitable for dense PCB designs.
- High Common-Mode Rejection Ratio (CMRR): The device offers a CMRR of up to 94 dB, ensuring minimal interference from common-mode signals.
- Single Supply Operation: It operates from a single power supply of 2.7 V to 18 V, simplifying power management in the system.
Applications
- Automotive Systems: The INA196AIDBVT is suitable for automotive applications due to its wide common-mode range and compliance with AEC-Q100 standards (for the INA196A-Q1 variant).
- Industrial Control Systems: It can be used in industrial control systems where high-voltage current monitoring is required.
- Power Supplies and DC-DC Converters: The device is useful in power supply and DC-DC converter applications for current sensing and monitoring.
- Motor Control and Robotics: Its high accuracy and bandwidth make it a good choice for motor control and robotics applications.
Q & A
- What is the common-mode voltage range of the INA196AIDBVT?
The INA196AIDBVT can operate at common-mode voltages from -16 V to +80 V.
- What is the gain of the INA196AIDBVT?
The gain of the INA196AIDBVT is 20 V/V.
- What is the bandwidth of the INA196AIDBVT?
The bandwidth of the INA196AIDBVT is up to 500 kHz.
- What is the operating supply voltage range of the INA196AIDBVT?
The device operates from a single power supply of 2.7 V to 18 V.
- What is the typical quiescent current of the INA196AIDBVT?
The typical quiescent current is 700 μA to 900 μA.
- What is the package type of the INA196AIDBVT?
The device is housed in a SOT-23 (DBV) package with 5 pins.
- What is the operating temperature range of the INA196AIDBVT?
The device operates over an extended temperature range of -40°C to +125°C.
- What are some typical applications of the INA196AIDBVT?
Typical applications include automotive systems, industrial control systems, power supplies, DC-DC converters, and motor control and robotics.
- Does the INA196AIDBVT have any automotive-specific variants?
Yes, the INA196A-Q1 is an AEC-Q100 compliant variant suitable for automotive applications.
- How does the INA196AIDBVT handle common-mode rejection?
The device uses a unique internal circuit topology to provide high common-mode rejection, independent of closely matched resistor values.
